IR's New XPhase Control IC Increases Multi-Phase Converter Efficiency by Three Percent in a Smaller Footprint.EL SEGUNDO, Calif. -- International Rectifier, IR(r) (NYSE NYSE See: New York Stock Exchange :IRF IRF Interferon Regulatory Factor IRF International Religious Freedom IRF Institut for Rationel Farmakoterapi (German) IRF Inherited Rights Filter (Novell) IRF Inherited Rights Filter ), a world leader in power management technology, today expanded the IR XPhase(tm) family of scalable multi-phase converter chipset devices with the IR3084 and IR3084U XPhase Control ICs. The new Control ICs are designed to be used with IR's existing IR3086A Phase IC and companion DirectFET(r) power MOSFETs such as the IRF6617 and IRF6691 to achieve as much as three percent higher efficiency in 130A applications with seven phases, compared to competing five-phase designs. The IR3084 supports Intel(r) VR10.x and VR11 microprocessor core power requirements, while the IR3084U is a universal voltage identification (VID) device for VR10.x and VR11 as well as AMD (Advanced Micro Devices, Inc., Sunnyvale, CA, www.amd.com) A major manufacturer of semiconductor devices including x86-compatible CPUs, embedded processors, flash memories, programmable logic devices and networking chips. Opteron(tm) VID codes and start-up sequences. The XPhase chipset is designed to increase power density and efficiency in desktops, servers, voltage regulator modules (VRM (Voltage Regulator Module) See voltage regulator. ) and embedded systems. By increasing the number of phases from five to seven, the current in each phase is decreased, and enables the use of smaller inductors and reduced output capacitors. This enables a reduction in footprint size from 3200 square millimeters to 2400 square millimeters, a 25 percent reduction in board area. The seven-phase IR3084 solution including the IRF6617 and IRF6691 power MOSFETs achieves 88 percent efficiency at full load current and eliminates the need for a heatsink. "Removal of the regulator heatsink reduces manufacturing costs and improves airflow to the CPU CPU in full central processing unit Principal component of a digital computer, composed of a control unit, an instruction-decoding unit, and an arithmetic-logic unit. in low-profile 1U and blade servers. This improves system performance and long-term product reliability," said Faisal Ahmad, marketing manager for DC-DC DC-DC Direct Current to Direct Current (power conversion) Computing Products at International Rectifier. Both Control ICs include 0.5 percent overall system accuracy and differential remote voltage sensing. The ICs offer a programmable 150kHz to 1MHz (MegaHertZ) One million cycles per second. It is used to measure the transmission speed of electronic devices, including channels, buses and the computer's internal clock. A one-megahertz clock (1 MHz) means some number of bits (16, 32, 64, etc. oscillator oscillator Mechanical or electronic device that produces a back-and-forth periodic motion. A pendulum is a simple mechanical oscillator that swings with a constant amplitude, requiring the addition of energy at each swing only to compensate for the energy lost because of air , remote temperature sensing, and loss-less DCR DCR Department of Conservation and Recreation DCR Decrease DCR Digital Cable Ready (television) DCR Dark Crisis (Yu-Gi-Oh! cards) DCR Debt Coverage Ratio DCR Dacryocystorhinostomy current sensing with programmable hiccup over-current protection. The IR3084U includes a VID select pin which allows for simple migration from AMD to Intel VID codes. XPhase is IR's distributed multiphase architecture that consists of control ICs and phase ICs that communicate using a simple five-wire bus scheme. Phases can be added or removed without changing the fundamental design. The five-wire analog bus consists of bias voltage, phase timing, average current, error amplifier output and VID voltage. By eliminating point-to-point wiring between the control and the phase ICs, the five-wire bus shortens interconnections, and reduces parasitic inductance and noise. This simplifies PCB PCB: see polychlorinated biphenyl. PCB in full polychlorinated biphenyl Any of a class of highly stable organic compounds prepared by the reaction of chlorine with biphenyl, a two-ring compound. layout and gives a more robust design. More information is posted on International Rectifier's Web site: http://www.irf.com/whats-new/nr060222.html. Availability and Pricing The IR3084 and IR3084U XPhase control ICs are available immediately. Pricing is US $1.60 each for the IR3084MPbF and the IR3084MTRPbF (Tape & Reel), and US $1.75 each for the IR3084UMPbF and the IR3084UMTRPbF (Tape & Reel). Pricing is in 10,000-unit quantity. Prices are subject to change. The devices are lead-free (PbF) and RoHS (Restriction of Hazardous Substances) compliant. About International Rectifier International Rectifier (NYSE:IRF) is a world leader in power management technology. IR's analog and mixed signal ICs, advanced circuit devices, integrated power systems and components enable high performance computing and reduce energy waste from motors, the world's single largest consumer of electricity. Leading manufacturers of computers, energy efficient appliances, lighting, automobiles, satellites, aircraft and defense systems rely on IR's power management benchmarks to power their next generation products. For more information, go to www.irf.com. Patent and Trademark Notice IR's proprietary DirectFET(r) technology is covered by US Patents 6624522, 6784540 and multiple other US and foreign pending patent applications. DirectFET(r), IR(r), HEXFET HEXFET Hexagonal Field Effect Transistor (r) and XPhase(tm) are registered trademarks or trademarks of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders. |
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